reports running wit sub accounts

 Hi Community!

See if you have a suggestion here.

I have a customer who has main account and sub accounts. 

They want to run tow type of schedule reports in weekely bases. one to Finance to have visibility on all usage with all subaccounts and another one per subaccounts head of department.

My question:

can be run a report from the main account that can easily tell what env have been spent by each sub account? 

thanks